What is dark energy? Why does dark energy seem to be weakening? Is our universe part of a larger multiverse? What lies beyond the boundary of a black hole? The universe seems to be rotating, and if ...

Could the Universe have been born inside a black hole? This question, raised by a team of scientists, challenges the Big Bang theory. Their proposal suggests our Universe might have formed within the ...

"Challenging long-held assumptions is essential to scientific progress." A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have formed ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Why didn’t the universe annihilate itself moments ...

Could our universe be expanding then shrinking back into a tiny point, reliving a kind of big bang over and over again? Probably not, according to a mathematical analysis that argues that the laws of ...